This is a library of perfboard and single-sided PCB effect layouts for guitar and bass. I'm not an electrical engineer by any stretch of the imagination, just a DIY'er who likes drawing layouts. It is meant for the hobbyist (so commercial use of any of these layout is not allowed without permission) and as a way to give back to the online DIY community.

Tuesday, November 20, 2018

Noise Gate

Here's an interesting and fairly simple noise gate circuit sent to me by Stanik Nupel from a Polish electronics book. Schematic and Stanik's original layout can be found here. The switch isn't in his original layout, so it may not be all that necessary. It'll be a tight squeeze in a 1590B, but should fit especially if you're using low profile jacks. Otherwise it'll fit nicely in a 125B with top mounted jacks.




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36 comments:

  1. Emanuel ChavesNovember 20, 2018 at 11:29 AM

    Seems to be an easy build, so I'm gonna give this one a try... just a simple question: what's the function of the switch?

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    Replies
    1. Effects LayoutsNovember 20, 2018 at 11:36 AM

      Not sure about it. Hopefully Stanik will chime in with some info.

      Delete
  2. nupelNovember 20, 2018 at 11:59 PM

    This comment has been removed by the author.

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  3. nupelNovember 21, 2018 at 12:02 AM

    The switch turns off the gate and the signal runs directly.You may not mount a 470ohm resistor and omit the breaker.

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  4. Michael GalanNovember 21, 2018 at 9:37 PM

    what can i try instead of the bf245. will a j201 replace that?

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    Replies
    1. nupelNovember 22, 2018 at 5:11 AM

      It should be good, just note that J201 has the reverse polarity.

      Delete
  5. alexandroidDecember 24, 2018 at 5:02 AM

    it looks like a simple version of a Boss NF1

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    1. nupelDecember 25, 2018 at 8:31 AM

      It works very similarly. The 1 micro capacitors returned to each other by the minus in the scheme are tantalum. I have not tried with ordinary electrolytes and I do not know if it will work. Tantals work well.

      Delete
    2. PabloSeptember 6, 2023 at 9:11 PM

      Just those two?

      Delete
  6. cristianmonsalve15January 4, 2019 at 1:55 PM

    funciona?

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  7. anemonekgoJanuary 29, 2019 at 1:42 AM

    Hi guys, Is this verified? I have tried to build it and hadn't got that sound what so ever.

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  8. nupelJanuary 29, 2019 at 10:41 AM

    You must have some mistake. Verified and works.

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    Replies
    1. anemonekgoJanuary 29, 2019 at 5:20 PM

      Thank you so much. I'll try it again.

      Delete
    2. anemonekgoJanuary 31, 2019 at 10:20 AM

      I noticed my mistake. After it was remaking, that moved perfectly. This is great pedal. I Verified too.

      Delete
    3. anemonekgoJanuary 31, 2019 at 10:22 AM

      Thank you for all of you.

      Delete
    4. Wahyu ekoJune 14, 2020 at 8:58 PM

      I've made it but cut SUSTAIN a lot. What components should I change

      Delete
  9. UnknownFebruary 6, 2019 at 1:06 AM

    I will do this pedal

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  10. MarlonSeptember 14, 2019 at 10:35 PM

    I'm using google translator...

    Does this circuit work?

    ReplyDelete
  11. MarlonSeptember 21, 2019 at 12:30 PM

    the pedal works, but it is making a loud noise.

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  12. UnknownDecember 4, 2019 at 5:05 AM

    Works. I added 1M resistor from T8 collector to ground to avoid pop when closing the gate.

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  13. n.dDecember 16, 2019 at 11:22 PM

    What components should I mess with to make it a line level circuit?

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  14. AlexMarch 11, 2020 at 8:42 PM

    This comment has been removed by the author.

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  15. Wahyu ekoApril 1, 2020 at 8:09 AM

    Verified or no?

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  16. nupelApril 17, 2020 at 6:00 AM

    Works well. Verified. Note the 1 micro capacitors. They should be tantalum.

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    Replies
    1. Wahyu ekoMay 21, 2020 at 4:32 AM

      This comment has been removed by the author.

      Delete
    2. Wahyu ekoMay 25, 2020 at 1:37 AM

      This comment has been removed by the author.

      Delete
    3. Wahyu ekoMay 25, 2020 at 6:20 AM

      I already made it but if sensivity wants to clean the nois d it's not full but it cuts sustain. If we turn it full at the end does the noise sound? How about this?

      Delete
    4. Wahyu ekoJune 14, 2020 at 8:55 PM

      @Nupel I've made it but cut SUSTAIN a lot. What components should I change?

      Delete
    5. Wahyu ekoJune 14, 2020 at 8:56 PM

      @Nupel I've made it but cut SUSTAIN a lot. What components should I change

      Delete
    6. Wahyu ekoJune 14, 2020 at 8:56 PM

      @Nupel I've made it but cut SUSTAIN a lot. What components should I change

      Delete
  17. DarisDecember 12, 2020 at 5:36 AM

    Could i use a500k instead of b500k?

    ReplyDelete
  18. Jun dMarch 21, 2022 at 6:21 AM

    Might try this one after a successful mxr noise gate built.for the fet i will use 2sk118 .this jfet did the job well in my mxr NG .
    Kuddos to this thread!
    Jun fr Philippines

    ReplyDelete
  19. Jun dApril 12, 2022 at 2:06 AM

    Its verified!got a minor parts change namely 22uf to 4.7uf and output current limiting resistor 1k to 600ohms.works very well!tnx.
    Jun fr Philippines

    ReplyDelete
  20. Nicholas BosMarch 11, 2024 at 12:31 AM

    The schematic link is dead, do you have another one?

    ReplyDelete

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